基于ISIGHT和AMESim的超高压共轨系统轨压控制优化设计  

Optimal design of rail pressure control for ultra-high pressurecommon rail system based on ISIGHT and AMESim

作　　者：张剑昆 杨昆[1] 周磊[1] ZHANG Jiankun;YANG Kun;ZHOU Lei(School of Power Engineering,Naval university of Engineering,Wuhan 430033,China)

机构地区：[1]海军工程大学动力工程学院,武汉430033

出　　处：《兵器装备工程学报》2023年第10期243-249,279,共8页Journal of Ordnance Equipment Engineering

基　　金：国家自然科学基金项目(51379212)。

摘　　要：为了在特定供油喷油规律下提高共轨管灵敏度同时减少轨压波动,在避免对柴油机共轨系统做大幅度改造的前提下,对超高压系统中共轨管几何参数和PID轨压控制器参数进行了优化。参照柴油机超高压共轨系统实验台架,利用AMESim对超高压共轨系统进行仿真,模拟真实情况下压力波动的产生。利用ISIGHT优化软件对共轨管几何参数的影响规律进行了参数灵敏度分析,利用NSGA-Ⅱ算法对共轨管几何参数和PID控制器参数设计进行了优化。结果表明:经过优化后的共轨管轨压灵敏度和轨压稳定性均有提升,其中轨压稳定性能提升9.13%,轨压反应时间缩短1.06%。使用相同方法对PID轨压控制参数进行优化,优化效果明显。In order to improve the common rail tube sensitivity and reduce the rail pressure fluctuation under a specific fuel supply and injection law,the geometry of the common rail tube and the parameters of the PID rail pressure controller of the UHV system are optimized while avoiding substantial modification of the common rail system of the diesel engine.With reference to the diesel engine UHP common rail system experimental rig,the UHP common rail system is simulated using AMESim to simulate the generation of pressure fluctuations under real conditions.The ISIGHT optimization software is used to analyze the parameter sensitivity of the influence law of the common rail pipe geometric parameters,and the NSGA-Ⅱalgorithm is used to optimize the design of the common rail pipe geometric parameters and PID controller parameters.The rail pressure sensitivity and stability of the common rail pipe are improved after optimization,in which the rail pressure stability performance is significantly improved by 9.13%,and the rail pressure reaction time is shortened by 1.06%.Then the same method is used to optimize the PID rail pressure control parameters,and the optimization effect is obvious.

关 键 词：超高压共轨系统 共轨管 ISIGHT PID控制 AMESIM 仿真 优化设计 

分 类 号：TK423[动力工程及工程热物理—动力机械及工程]